// This file is part of Substrate.

// Copyright (C) 2019-2021 Parity Technologies (UK) Ltd.
// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0

// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.

// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.

//! Utilities to build a `TestClient` for `node-runtime`.

use sc_service::client;
use sp_runtime::BuildStorage;
/// Re-export test-client utilities.
pub use substrate_test_client::*;

/// Call executor for `node-runtime` `TestClient`.
pub type Executor = sc_executor::NativeExecutor<node_executor::Executor>;

/// Default backend type.
pub type Backend = sc_client_db::Backend<node_primitives::Block>;

/// Test client type.
pub type Client = client::Client<
    Backend,
    client::LocalCallExecutor<Backend, Executor>,
    node_primitives::Block,
    node_runtime::RuntimeApi,
>;

/// Transaction for node-runtime.
pub type Transaction = sc_client_api::backend::TransactionFor<Backend, node_primitives::Block>;

/// Genesis configuration parameters for `TestClient`.
#[derive(Default)]
pub struct GenesisParameters {
    support_changes_trie: bool,
}

impl substrate_test_client::GenesisInit for GenesisParameters {
    fn genesis_storage(&self) -> Storage {
        crate::genesis::config(self.support_changes_trie, None).build_storage().unwrap()
    }
}

/// A `test-runtime` extensions to `TestClientBuilder`.
pub trait TestClientBuilderExt: Sized {
    /// Create test client builder.
    fn new() -> Self;

    /// Build the test client.
    fn build(self) -> Client;
}

impl TestClientBuilderExt
    for substrate_test_client::TestClientBuilder<
        node_primitives::Block,
        client::LocalCallExecutor<Backend, Executor>,
        Backend,
        GenesisParameters,
    >
{
    fn new() -> Self {
        Self::default()
    }

    fn build(self) -> Client {
        self.build_with_native_executor(None).0
    }
}
